[Present status and future outlook for radiologic technology].
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Computers↗
Biomedical subjects
K D Kalantarov
Publications and source records attributed to K D Kalantarov.
[Radioisotope diagnostic unit].
A diagnostic radionuclide complex is described, developed and introduced into practice in the clinical hospital, servicing 300 thousand patients. Optimal set of methods, nomenclature of instruments, system for information collection and processing as well as the tactics of application of these instruments have been developed.
Equipment and Supplies, Hospital↗
[GPR-1 longitudinal radioisotope gamma-tomograph].
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Tomography, Emission-Computed↗
[Evaluation of the functional and clinical qualities of the new GSG-2 dual-sensor gamma-topograph].
A double-sensor gamma-topograph model GSG-2 has been constructed to realize colour shade lining and black-and-white photographic registration of images reflecting spatial distribution of radioactive isotopes introduced to patients for diagnostic purposes. On the ground of trial tests the valuation of functional and clinical qualities of the device is given.
Bone and Bones↗
[Study of the microcirculation in the liver by the radioactive 133Xe clearance method in surgical patients during anesthesia and the operation].
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Anesthesia↗
[A trial of the clinical use of the Testascan computerized gamma tomograph in neurosurgical pathology].
The paper outlines the diagnostic potentialities of the first Russian multidetector Testascan gamma-tomograph. With this, three different radio pharmaceuticals (RP) were used; 99mTC-GM PAO for examining cerebral circulatory disorders, 99mTC pertechnetate for visualizing tumor foci, and 99mTC-DTPK for studying impaired cerebral liquor pathway. Regional cerebral blood supply was studied in 78 patients with arterial aneurysms and arteriovenous malformations, with stenoses and thromboses of the great arterial trunks, as well in patients with brain injury sequelae and hypophyseal, craniofascial, and cavernous sinus tumors, VIII-neurinomas, meningiomas of the pyramid of the temporal bone. Some 103 patients with various intra- and extracerebral volumetric formations are examined. The impaired cerebral liquor pathways were explored in 27 patients with pathological processes of various genesis. Experience in clinically using the Russian Testascan computer gamma-tomograph in neurosurgical care has shown its high validity in diagnosing various focal processes of tumor and nontumor genesis. Single photon emission computerized tomography (SPECT) may reveal foci of abnormal elevation or reduction of RP accumulation by showing different anatomically topographic characteristics. SPECT is the most promising in the study of cerebrovascular diseases of various genesis and in the presence of tumors at basal sites.
Brain↗
[Conceptual and technological diagnostic problems in the prevention and rehabilitation of stroke].
The paper provides the optimum algorithms for diagnosing the severity of prestroke cerebral circulatory disorders and determining the poststroke brain lesion extent. It is suggested that various techniques, such as radionuclide diagnosis, Doppler ultrasonography, postural disorder correction should be employed.
Algorithms↗
[Methods and means for the noninvasive assessment of the cerebral circulation].
The main clinical and diagnostic tasks while studying cerebrovascular diseases have been defined and set on the basis of analysis of the biophysical and pathophysiological factors and parameters that characterize the cerebral circulation in health and disease. The currently available physioengineering methods and means for evaluating cebral hemodynamics. Proposals to design new equipment and to improve the existing one and recommendations how to use them while examining the cerebral circulation in various clinical situations are given.
Biophysical Phenomena↗